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Health Dictionary

Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.

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Left anterior fascicular block causes

Introduction

Overview

Overview

Left anterior fascicular block, which is more common than left posterior fascicular block, may be due to damages to the left anterior fascicle as it passes through the left ventricular outflow tract, such causes include aortic stenosis, hypertensive heart disease and cardiomyopathy. It can also be caused by congenital heart diseases such as Atrial septal defect, atrioventricular septal defect, single ventricle, e.t.c However, life threatening conditions such as myocardial infarction must be promptly identified and treated accordingly.

Causes

Causes

Life Threatening Causes

Life-threatening causes include conditions which may result in death or permanent disability within 24 hours if left untreated.

Common Causes

Causes by Organ System

Cardiovascular Alcoholic cardiomyopathy, anomalous origin of the left coronary artery, aortic stenosis, atrial septal defect, atrioventricular septal defect, coronary artery disease, double outlet right ventricle, hypertensive heart disease, hypertrophic cardiomyopathy, ischemic cardiomyopathy, left ventricular hypertrophy, Lev’s disease, myocardial infarction, postpartum cardiomyopathy, restrictive cardiomyopathy, single ventricle, transposition of the great vessels, tricuspid atresia
Chemical/Poisoning No underlying causes
Dental No underlying causes
Dermatologic Lentiginosis
Drug Side Effect No underlying causes
Ear Nose Throat No underlying causes
Endocrine No underlying causes
Environmental No underlying causes
Gastroenterologic No underlying causes
Genetic Atrial septal defect, Charcot-Marie-Tooth disease, double outlet right ventricle, Kearns-Sayre syndrome, lentiginosis, limb-girdle muscular dystrophy
Hematologic No underlying causes
Iatrogenic Aortic valve replacement, septal myomectomy, subvalvar aortic resection, Tetralogy of Fallot repair, ventricular septal defect surgery
Infectious Disease Chagas disease
Musculoskeletal/Orthopedic Limb-girdle muscular dystrophy
Neurologic Charcot-Marie-Tooth disease, Kearns-Sayre syndrome
Nutritional/Metabolic No underlying causes
Obstetric/Gynecologic Postpartum cardiomyopathy
Oncologic No underlying causes
Ophthalmologic No underlying causes
Overdose/Toxicity No underlying causes
Psychiatric No underlying causes
Pulmonary Obstructive sleep apnea
Renal/Electrolyte No underlying causes
Rheumatology/Immunology/Allergy No underlying causes
Sexual No underlying causes
Trauma No underlying causes
Urologic No underlying causes
Miscellaneous Ageing

Causes in Alphabetical Order

References

References


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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Cafer Zorkun, M.D., Ph.D. [2]